当前位置: X-MOL 学术Adv. Astron. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A New Image Restoration Method for MUSER
Advances in Astronomy ( IF 1.6 ) Pub Date : 2019-05-02 , DOI: 10.1155/2019/8087405
Wei Wang 1, 2 , Yihua Yan 1, 2, 3
Affiliation  

Solar radio images in decimeter wave range consist of many complicated components including a disk component, some bright and weak compact sources, and many diffuse features. Complicated structures combining these various components maybe cause restoration failure when using conventional algorithms. Furthermore, the images at different frequencies band are pretty different. Therefore, restoration method for solar radio image is different from other radio sources. Some image restoration methods were applied and obtained good results on Nancay radioheliograph images and Nobeyama radioheliograph images, and some new methods were introduced into processing these complicated solar radio images in recent years. For a new radioheliograph with ultrawide frequency band, new image restoration method which can maximize function of telescope is demanded. Different images could be obtained from the same visibilities data by using different weighting functions in imaging processing. In this paper, a new restoration method for solar radio image was proposed. Two images with different weighting functions from the same data are combined in this method. This restoration method has applied to data processing of Mingantu spectral radioheliograph.

中文翻译:

MUSER的新图像还原方法

分米波范围内的太阳射电图像由许多复杂的组件组成,其中包括磁盘组件,一些明亮而紧凑的紧凑型源以及许多漫射特征。当使用常规算法时,将这些不同组件组合在一起的复杂结构可能会导致恢复失败。此外,不同频带上的图像非常不同。因此,太阳无线电图像的恢复方法与其他无线电源不同。近年来,在Nancay放射线照相图像和Nobeyama放射线照相图像上应用了一些图像复原方法,并取得了良好的效果,近年来,在处理这些复杂的太阳放射线图像中引入了一些新方法。对于具有超宽频带的新型放射线射影记录仪,需要能够最大化望远镜功能的新图像复原方法。通过在成像处理中使用不同的加权函数,可以从相同的可见性数据中获得不同的图像。本文提出了一种新的太阳射电图像复原方法。用这种方法将来自相同数据的具有不同加权函数的两个图像组合在一起。该恢复方法已应用于Mingantu光谱放射Heliograph的数据处理。
更新日期:2019-05-02
down
wechat
bug